Question: Help with using Maple 12 for MA141

Good Day,

Please assist with helping me in figuring out how to input math problems into Maple12. I am enrolled in MA 141 and my deadline to finish the course is June 1st. This class is very confusing and I would really appreciate if someone can assist me. thanks in advance.

One of my problems are: Find the absolute value of the complex number: z=9-5i

I have no idea how to input that into the software to get the answer...

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